Back to results
US 12,180,124 B2Granted
Fertilizer compositions having slow-release nitrogen compounds and methods of forming thereof
AssigneeOMS Investments, Inc.
InventorHarold E. Thompson
Life of this patent
Estimating the term…
Abstract
Methods of forming a fertilizer composition having slow-release nitrogen compounds with a molten process are disclosed. The methods include mixing of a crystalline polyethylene wax with urea and formaldehyde to form a molten methylene urea mixture. The contents of the molten methylene urea mixture react to form slow-release nitrogen compounds. Fertilizer compositions formed of or including the slow-release nitrogen compounds are also disclosed.
Claims18
A fertilizer composition comprising:
- slow-release nitrogen compounds, the slow-release nitrogen compounds comprising at least one of methylenediurea (“MDU”) and dimethylenetriurea (“DMTU”);
- and
- about 2% to about 10%, by weight, of a first crystalline polyethylene wax;
- and
- wherein the at least one of MDU and DMTU comprise about 45% or more of the total nitrogen in the fertilizer composition;
- and
- wherein the fertilizer composition exhibits a complex viscosity of about 0.1 Pas to about 0.20 Pas when measured at a temperature of about 150° C.
4 more elements
Dependencies are inferred from the claim text.